ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,383, issued on July 15, was assigned to Applied Materials Inc. (Santa Clara, Calif.).
"Planarized crystalline films for diffractive optics" was invented by Michael Alexander Weinstein (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Optical device films and methods of forming optical device films having a RMS surface roughness less than about 2.2 Muin and a refractive index greater than 2.0 are provided. In one embodiment, an optical device film is provided and includes a crystalline or nano-crystalline material having a refractive index greater than 2.0. A top surface of the optical device film has a root-mean-square (RMS) surfac...